Photographer&#39;s lamp



H. J. MOECKEL.

PHOTOGRAPHERS LAMP.

APPLICATION FILED SEPT. 6, I921.

Patented 001E. 3, 1922.

2 SHEETSSHEET I- gvvue'wtoz HEI'JE man 11 JMDE ch91,

H. J. MOECKEL.

PHOTOGRAPHERS LAMP.

APPLICATION FILED SEPT. 6. 1921.

1 ,Q3Q827u Patented 001;. 3, 11922..

2 SHEETSSHEET 2.

Harcmarm J. MUEERE].

Patented @ct. d, lflflo HARTMANN J1 OHDT MOECKEL, U15 EST. LUUIS, MISStD'UElL PEIQTQGRAPHERS Eli-Milli.

application tiled deptcmter t, 19:31. Serial No. teaser.

Z '0 all whom it may concern.

Be it known that l, HAn'rMANN J. Mononnn, a citizen of the United States, residing at St. Louis, in the county of St. Lowe and State of Missouri, have invented certaln new and useful Improvements in Photo raphers Lamps, of which the following 18 a specification.

This invention relates to lightmg devlces for photographic and other studios, and the primary object of the invention is to provide an improved electric light1n device, so constructed as to permit the light rays therefrom to be trained'upon a desired object to the best advantage, and which will eliminate the necessity of providing a skylight in buildings for photographic purposes, therebyreducing the insurance rates on such buildings. y

Another object of the invention is to provide a novel electric lamp for use in photographers studios embodying a supporting standard, a reflector for receiving the electric lamp, and a novel means for mounting the reflector upon the standard, whereby the reflector can be readily and easily moved toany desired position on the standard and I held in position against accidental displacement.

A further object of the invention is the provision of a novel electric lamp in which the means for mounting the reflector upon the standard permits the reflector to slide thereon without binding and allows the reflector to be swung 'at various angles in relation to the horizontal in a convenient and expeditious manner.

it still further object of the invention is to provide an improved electric lamp for use in photographic and other studios of the above character, which will be durable and efficient in use, one that will be simple and easy to manufacture, and one which can be placed upon the market at a reasonable cost.

With these and other objects in view, the inventionconsists in the novel construction, arrangement and formation of arts, as will be hereinafter more fully described, claimed and illustrated in the accompanying drawings, forming a part of this specification,

in which drawings:

Figure 1 is a side elevation of the 1mproved electric lighting, device, parts thereof in section.

Figure 2 is a top" plan view of the improved lighting device showing the portions of the reflector and diflusing frame in section.

Figure 3 is an enlarged fragmentar sectional view through the reflector an diffusing frame taken on the line 3-3 of Figure 1, illustrated the means of connecting the frame to the reflector.

' Figure t is an enlarged side elevation of the sliding head utilized for carrying the and extension cord tube, portions of the head being shown in section.

Figure 5 is a section taken on the line 5-5 of Figure 4: through said head.

Figure 6 is an enlarged transverse section through one of the sliding sleeves of showing the head utilized for connecting the head to wherein similar reference characters designate corresponding parts throughout the several views, the letter A indicates the base of the improved electric lighting device; B, the reflector; C, the novel means for connecting the reflector with the base; D,

the counterbalancing means for the reflector and connecting means, andoE the diffusing frame for the reflector.

The base A includes a lower frame or bed plate 10, to which can be secured in any preferred manner rollers 11, whereby the improved lighting device can be readily moved to any desired point in the studio. The lower frame or bed plate 10 supports at the central portion thereof an upstanding tube 12, to which may be secured by asuitable reducing nipple 13, a hollow upstanding standard 14:, to which is adapted to be connecting by the novel connecting means C the counterbalancing tape for 4 the'reflector B which will nowbe' described.

desired material and slze, but as shown the same is of a substantially frusto-pyramidal construction and includes the inclined side walls 16. The inner end of the frustopyramidal construction has formed integral therewith and secured thereto in any preferred manner, a second pyramidal shaped body, the walls 17 of which have a greater pitch than the walls 16 of the first mentioned portion of the reflector. The walls 17 carry a rear wall or attaching plate 18, which is to be bolted or otherwise secured to the connectin means C as will be hereinafter describe The baw portion of the lamp 15 is extended through a relatively large opening 18', in the upper wall 16 of the reflector B, and this wall forms means for permitting the escape of the heat generated within the reflector. This opening is surrounded by a suitable heat conveying tube 19, which has secured at its upper end an annular connecting ring 20, which may be bolted by suitable stove bolts 21 to an attaching plate 22, which is carried by the goose neck portion 23 of the protecting tube 24 of an extension electric cord 25. This extension electric cord 25 is connected in any preferred manner to the terminals of the socket 26 of the electric lamp 16. This socket is connected to the attaching plate 22 and the goose neck portion 23 of the protecting tube 24. It can be seen that the heat generated by the lamp 15 may escape up through the enlarged opening 18 and through the conducting tube 19. If desirable, the upper and lower walls of the reflector B can also be rovided with suitable escape openings 27 or the heated air.

The connecting means or head C includes a pair of spaced sleeves 30 and 31, which are connected together by means of a rigid rod 32, which constitutes a handle portion. The sleeves 30 and 31 are dis osed in vertical alignment and are mounte upon thestandard 14 for both sliding and rotary movement. In order to permit the easy sliding of the sleeves 30 and 31 on the standard 14-, the opposite ends of these sleeves are provided with anti-friction rollers 33 as can be readily seen by referring to Figures 4 and 8 of the drawings. ne face of the upper sleeve 30 has connected thereto by a suitable machine screws or the like, a sector plate 35, the rear edge of which is provided with a plurality of equi-distantly spaced locking, notches 36. The rear face of the upper sleeve 30 supports a rearwardly extending internally threaded sleeve 37, for the reception of the locking screw 38, which is provided with a suitable operating handle 39. It can be seen that by operating the screw 38, the inner end of the same can be moved into engagement with the standard 14 and thereby efiectively prevent the sliding or turnin movement of the head upon the standar The forward face of the uppersleeve 30 supports an outwardly extending lug 40, which is received in the ifurcated portion 41 of a block 42, the outer face of which has formed integral therewith an attaching late 43. This attaching plate 43 is adapte to abut the rear wall or the attaching portion 18 of the reflector B, and is adapted to be connected thereto by-means of suitable attaching bolts or the like. The block 42 is also provided with a vertically extending way 44, through which the protecting tube 24 of the extension electric cable 25 is adapted to extend. This tube is held in position in the way 44 by means of a suitable set screw or the like. The block 42 is connected to the lug 40 by means of a-suitable pivot bolt 45, which extends through the lug 40 and the bifurcated portion 41 of the block. One side face of the block 42 has connected thereto by means of the pivotbolt 45 and a dowel pin 46, a guide block 47, which is provided with a rearwardly extendin relatively thin arm 48. The outer end 0 this arm 48 is notched as at 49, and this notched portion is adapted to be brought into alignment with any one of the notches36, when the block 42 is swung on the pivot bolt 45. This guide block 47 supports a sliding latch 50 which is held in a grooved portion of the guide block by means of a cover plate 51, which can be connected to the guide block by suitable screws or the like. The inner end of the sliding latch 50 is provided with. a re-..-

duced rod 52, around which is coiled a tension spring 53. One end of this tension spring 53 engages, a washer carried by the rod, and the other end a rigid portion of the guide block 47. The latch 50 is limited in its sliding movement by means of an integral lug 54, which is formed on the guide block 47 and is received in a guide screw 55 formed in the inner face of the latch. The outer end of the latch has connected thereto an outwardly extending operating handle 56. This handle 56 has extending therethrough a locking bolt 58, which is adapted to fit in the notch 49 formed in the portion 48 of the guide block 47, and is adapted to fit in any one of the notches 36 formed in the sector plate 35, in order to hold the attaching plate 43- and consequently the reflector B in any preferred adjusted position. It can be seen that by moving the handle 56 rearwardly, the latch 50 will be moved rearwardly against the tension of the coil spring 53, and the locking bolt 58 will be moved out of the locking notch 36, thus permitting the block 42 and its attaching plate 43 and reflector B to be swung on the pivot bolt 45.

iaaaaar By merely releasing the handle 56, the looking bolt 58 will be returned to its normal position in one of the locking notches 36, by means of the coil spring 53.

7 By this construction, it can be seen that the reflector B can be swung at any desired angle in relation to the horizontal and swung around in a horizontal plane on the standard 14:. 1

ln order to facilitate the raising and lowering of the connectin head C and the reflector the counterbalancing means D is provided. This counterbalancing means D consists of a weight 60, which is slidably mounted within the hollow standard. The upper end of this weight has connected thereto a suitable tape or cable 61, which is trained about a pulley wheel 62. The opposite end of the cable is connected to a transversely extending bolt 63 carried by the upper sleeve 30. This bolt 63 is arranged directly opposite the antifriction roller 33 carried by the upper sleeve. The cable receiving pulley 62 is -rotatably mounted upon a pivot pin or bolt 65 carried by a pair of upstanding cars 66, which are formed on a rotatable sleeve 67. This sleeve 67 is positioned in a cap 68 which is connected to the upper end of the standard 14 by means of suitable screws or the like 69. The upper end of the sleeve 67 has formed thereon a flange 70, and the cap 68 and the flange 70 has in terposed therein a race way in which is interposed a plurality of roller or ball bearings 7i. The lower end of the sleeve has detachably secured thereto an annular washer or ring 72, and this washer and the lower end of the cap 68 has interposed therebetween a plurality of ball or roller bearings 73. This permits the ready rotation of the sleeve and allows the connecting member or head C of the reflector to be readily rotated around the standard. V

In order to diffuse the i ht, the frame E is provided. This frame is of a substantially open rectangular construction and has formed on its outer edge an inwardly extending retaining flange 75. The frame is adapted to receive a locking frame 76, which is also of substantially rectangular construction. This frame 76 is adapted to slide in the first mentioned frame and to abut against the inwardly extending flange 75.

A suitable piece of fabric, such as tracing cloth or the like is arranged between the frames, and the frames serve to hold the same in position. The frame E is adapted to abut the outer edge of the reflector B and is held thereon against accidental displacement by means of suitable resilient clamps 78.

From the foregoing description, it can be seen that an improved electic lamp has been provided of exceptionally simple and durable construction, which is particularly means on the.

adapted for photographic work, owing to the means for permitting the reflector of the lamp to be readily adjusted to any desired position and that the rays of light from the lamp will be diflused over a relatively large area, and thereby'rendering the use of the lam similar to the natural daylight.

T e use of the tracing cloth or linen as a diflusing medium for the reflector has been found to be very satisfactory, as the rays of light arenot only difi'used, but are given a natural tone and the glare is eliminated,

thus simulating natural daylight.

Changes in details ma be made without departing from the spirit or scope of this invention; but,

I claim:

1. A lamp for photographic purposes comprising a base, a vertically disposed standard carried by the base, a head slidably and rotatably mounted upon the standard, means carried by said head for locking the head upon thestandard for sliding or rotary movement, a reflector carried by the head, a lam arranged in the reflector, a counter-balancing weight disposed within the standard, and a cable connected to said Weight and to said head.

2. A lamp for photographic purposes comprising a standard of hollow construction, a pulley wheel carried by the upper end of the standard and arranged to rotate-about said standard, a head rotatably and slidably mounted upon the standard, a reflector secured to the head, a lamp arranged within the reflector, a counter-balancing weight slidably mounted within the standard, and a cable arran ed over said pulley and having its opposite end arranged respectively to the wei ht and to said head.

3. Tn a Tamp for photographic purposes, a standard, a head arranged upon the standard including a pair of spaced sleeves rotatably and slidably mounted upon the standard, a Ell-shaped handle connecting said sleeves together, a set' screw carried by one of the sleeves for engaging the standard to prevent movement of the sleeves upon said standard, a block, means pivotally connecting the block to said head, a reflector secured to the block, a lamp disposed within said reflector, and locking means carried by the sleeves for engaging said head to hold the block against swinging movement.

4. In a lamp for photographic purposes, a standard, a head including a pair of spaced sleeves, and a rigid handle connecting the sleeves, a sector plate secured to said head having a plurality of locking notches formed therein, means carried by one of the sleeves for engaging said standard to prevent movement of the head'upon the standard, a block, means pivotally securing the block to the head, an attaching plate carried by the block, a sliding latch carried by said block, an outwardly extending handle secured to said latch, a locking bar carried by the handle arranged to engage in any one of the locking notches formed in said sector late.

5. A amp for photographic purposes comprising a standard, a head including a pair of spaced sleeves rotatably and slidably mounted upon said standard, a rigid handle connecting the sleeves together, a locking member carried by one of the sleeves for engaging the standard to prevent movement of the head thereupon, a block, means pivotally securing the block to the head, a pivot bolt connecting the block to said head, a sector plate having a plurality of notches therein ri idly securedoto said head, a locking hand e slidably carried by the block arranged to enga e in any one of said notches, a goose neck tu carried by the block, a reflector rigidly secured to the block, a lamp socket carried by the tube, a lamp fitted within said socket and disposed within the reflector, and an extension electric cord disposed in said goose neck tube and electrically connected to said lamp socket.

6. In a lamp for photographic purposes, a reflector having an opening formed in the upper end, an air escape tube connected to the upper end of the reflector and disposed about said openin an electric wire carrying tube dispose above said reflector, a lamp socket carried by said tube, an attaching plate connected to said tube, an attaching ring secured to the hot air conve ing tube, and bolts connecting the attac ing plate and the attaching ring together.

7. In a lamp for photographic purposes, a hollow standard, a head including a pair of spaced sleeves, a rigid handle connecting said sleeves, the sleeves, bein mounted upon the standard for rotary and sliding movement, anti-friction rollers carried by the opposite ends of the sleeves for engaging said standard, a reflector carried by the head, a counterbalancing weight disposed within the standard, a ulley carried by the upper end of the stan ard, one of the sleeves having a notch formed therein, a connectin pin secured to the last mentioned sleeve an disposed in said notch, and a connectin cable disposed over said pulley and secured to said counterbalancing weight and to said 8. In a lamp for photographic purposes, a hollow standard, a head rotatably and slidably mounted upon the standard, a reflector pivotally secured to the head, a hollow ca secured to the upper end of the standardj a sleeve rotatably mounted in said cap, a pulley rotatably mounted in said sleeve, a weight slidably mounted within said standard, a cable disposed about said pulley and secured to the weight and to/s aid head.

HARTMANN JOHN MOECKEL. 

